TY - JOUR T1 - Modified 3D-printed device for mercury determination in waters A1 - Mattio,Elodie A1 - Ollivier,Nadia A1 - Robert-Peillard,Fabien A1 - Di Rocco,Robert A1 - Branger,Catherine A1 - Margaillan,Andre A1 - Brach-Papa,Christophe A1 - Knoery,Joel A1 - Bonne,Damien A1 - Boudenne,Jean-Luc A1 - Coulomb,Bruno AD - Aix Marseille Univ, CNRS, LCE, Marseille, France AD - University of Toulon, MAPIEM, La Garde, France AD - IFREMER, LBCM, Nantes, France AD - Aix Marseille Univ, CNRS, Centrale Marseille, ISM2, Marseille, France UR - https://doi.org/10.1016/j.aca.2019.06.062 DO - 10.1016/j.aca.2019.06.062 KW - Stereolithography KW - Poly(methylmethacrylate) grafting KW - Dicarboxylate 1,5-diphenyl-3-thiocarbazone KW - Multi pumping flow system KW - Mercury N2 - 3D printing technology is increasingly used in flow analysis, to develop low cost and tailor-made devices. The possibility of grafting specific molecules onto 3D printed parts offers new perspectives for the development of flow systems. In this study, a MPFS system including a dicarboxylate 1,5-diphenyl-3-thiocarbazone grafted 3D-printed device has been developed for mercury determination. For this purpose, the surface of 3D-printed cuboids was first modified with amine functional groups and then grafted with dicarboxylate 1,5-diphenyl-3-thiocarbazone. This new grafted device resulted in selective mercury preconcentration with extraction and elution yields higher than 90% even at high sampling flow rates. The detection can then be carried out in two ways: a direct detection of mercury extracted onto 3D-printed grafted cuboids by atomic absorption spectrophotometry after amalgam on gold or a detection of mercury in solution after elution with L-cysteine by spectrophotometry or cold vapor atomic absorption spectrometry. Y1 - 2019/11 PB - Elsevier BV JF - Analytica Chimica Acta SN - 0003-2670 VL - 1082 SP - 78 EP - 85 ID - 61682 ER -